Everyone Has a Copy, and the World Is at Full Level at the Beginning

In this world, everyone can open up a copy world of their own when they reach adulthood at the age of eighteen. The dungeon world connects all realms, and various treasures are refreshed every day! The more powerful the connected world is, the more precious the refreshed treasures will be! And after the eighteen-year-old Lu Jin awakened to the dungeon world, he suddenly discovered that his dungeon world was actually at full level? While others are still working hard to cultivate world levels, Lu Jin's dungeon world has already begun to refresh various artifacts and secret treasures! Ding, your world has obtained the artifact "Ares Battle Ax"! Ding, your world has obtained the secret treasure "Indestructible Chain Armor"! Ding, your world has gained the servant "Demon Saint"! ...